JPS5723638A - Preparation of heat insulating material with waste material of rigid polyurethane foam - Google Patents
Preparation of heat insulating material with waste material of rigid polyurethane foamInfo
- Publication number
- JPS5723638A JPS5723638A JP8712280A JP8712280A JPS5723638A JP S5723638 A JPS5723638 A JP S5723638A JP 8712280 A JP8712280 A JP 8712280A JP 8712280 A JP8712280 A JP 8712280A JP S5723638 A JPS5723638 A JP S5723638A
- Authority
- JP
- Japan
- Prior art keywords
- waste material
- heat insulating
- polyurethane foam
- rigid polyurethane
- catalyst
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE:To obtain the titled heat insulating material, having heat insulating properties, strength, etc., and usable for building, etc., by mixing diphenylmethane diisocyanate, etc. with a pulverized waste material of rigid polyurethane foam, etc., and reacting and curing the resultant mixture in the presence of a catalyst by the compression under heating. CONSTITUTION:A waste material of rigid polyurethane foam is pulverized or cut to a diameter of about 20mm.phi or less. 100pts.wt. resultant chip-like waste material is then mixed with 7pts.wt. diphenylmethane diisocyanate MDI (n is 0) in a compound expressed by the formula (n is 0 or 0-2 or more) or crude MDI (n is a mixture of 0-2) as a binder and an aqueous solution of a water-soluble tertiary amine, e.g. triethylenediamine, as a catalyst at a weight ratio between the catalyst and the water of 1/10-1/50 by the spray coating for 30sec-5min. The resultant mixture is then introduced into a mold, compressed to a volume of 1/2-1/10 preferably under heating at 100 deg.C or above for 2min or longer, reacted and cured.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8712280A JPS5723638A (en) | 1980-06-26 | 1980-06-26 | Preparation of heat insulating material with waste material of rigid polyurethane foam |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8712280A JPS5723638A (en) | 1980-06-26 | 1980-06-26 | Preparation of heat insulating material with waste material of rigid polyurethane foam |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5723638A true JPS5723638A (en) | 1982-02-06 |
JPH0144498B2 JPH0144498B2 (en) | 1989-09-28 |
Family
ID=13906144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8712280A Granted JPS5723638A (en) | 1980-06-26 | 1980-06-26 | Preparation of heat insulating material with waste material of rigid polyurethane foam |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5723638A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05309753A (en) * | 1990-12-20 | 1993-11-22 | Asaoka Kk | Fiber-reinforced plastic molded body with disposed fiber-reinforced plastics as filler and manufacture thereof |
US5672631A (en) * | 1991-04-24 | 1997-09-30 | Pauls; Mathias | Method for processing packaging remnants with recovery of materials |
US5814674A (en) * | 1992-04-23 | 1998-09-29 | Rathor Ag | Method for processing residue-containing packages |
US5958988A (en) * | 1995-11-09 | 1999-09-28 | Toyota Jidosha Kabushiki Kaisha | Cross-linked polyurethane resin powder and process for producing the same |
GB2473426A (en) * | 2009-09-04 | 2011-03-16 | Michael John Smith | Waste plastics material for moulding building components |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4969783A (en) * | 1972-10-26 | 1974-07-05 | ||
JPS5142751A (en) * | 1974-10-02 | 1976-04-12 | Ici Ltd | |
JPS5228576A (en) * | 1975-08-29 | 1977-03-03 | Toyo Rubber Chemical Ind Co | Process for regenerating disposed hard foamed urethane |
-
1980
- 1980-06-26 JP JP8712280A patent/JPS5723638A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4969783A (en) * | 1972-10-26 | 1974-07-05 | ||
JPS5142751A (en) * | 1974-10-02 | 1976-04-12 | Ici Ltd | |
JPS5228576A (en) * | 1975-08-29 | 1977-03-03 | Toyo Rubber Chemical Ind Co | Process for regenerating disposed hard foamed urethane |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05309753A (en) * | 1990-12-20 | 1993-11-22 | Asaoka Kk | Fiber-reinforced plastic molded body with disposed fiber-reinforced plastics as filler and manufacture thereof |
JPH06102364B2 (en) * | 1990-12-20 | 1994-12-14 | アサオカ株式会社 | Fiber-reinforced plastic molded product using discarded fiber-reinforced plastic as a filler and method for producing the same |
US5672631A (en) * | 1991-04-24 | 1997-09-30 | Pauls; Mathias | Method for processing packaging remnants with recovery of materials |
US5814674A (en) * | 1992-04-23 | 1998-09-29 | Rathor Ag | Method for processing residue-containing packages |
US5958988A (en) * | 1995-11-09 | 1999-09-28 | Toyota Jidosha Kabushiki Kaisha | Cross-linked polyurethane resin powder and process for producing the same |
GB2473426A (en) * | 2009-09-04 | 2011-03-16 | Michael John Smith | Waste plastics material for moulding building components |
Also Published As
Publication number | Publication date |
---|---|
JPH0144498B2 (en) | 1989-09-28 |
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